Automobile brake



Patented Fein-l0, 1925. l

UNITEDSTATES ParamA OFFICE. i

i MICHAEL cnoWLEY, or Newronx. N. Y., assreivon,l ymz DIRECT vAND Masiva ASSIGN- `MENTS, T COWINGBRAKE CORPORATION,A1OF NEW lYORK, HN. `Y., A CORPORATION or NEW Yoax. w Y

To all who/mit may concernr..

lBe 'itk'nownthatIyMIoHAEL CROWLEY,

- a citizen of the sUnited States, and a resi- "dent lof the city f(l\Tew"Y`ork,`` borough of Manhattan, in the countyand State ofNew York, have inventedl a new `and Improved `Automobile Brake, of wh-ichthe following is a full, clear, andjexactidescrlption@' This inventionrelatesto lbrakes for `ve hicles and has 4for an object'to provide an improved `construction wl1erein`. a quick ally engage the` drum for producing a brakbraking" action is secured with a. maximum braking effect.

Another object in View is to provide a brake for automobiles whereina brake band parts whereby a comparatively small movement will cause all ofthe coils to frlctioning actlon. y

In the accompanying drawing- Figure 1 is a section onv line 1-1 of F1g ure 2, showing a 4brake embodying the invention, the same being `shown applied.

Figure 2 is an edge view of the structure shown in Figure 1.

Figure 3 is a perspective View o'f the brake shoe shown in Figure 1 with part of `a wheel `shown in connection therewith.

Figure 4 is a detail fragmentary sectional View through Figure 3 on line 4 4.

Figure 5 is a section taken on line 5-5 of Fi ure 4.

Re erring to the accompanying drawing by numerals 1 indicates a wheel of any desired kind to which a drum 2 is secured. The

`wheel 1, if desired, may be provided with an axle housing 3 which accommodates the axle 4. The wheel 1, drum 2, axle housing 3 and axle .4- are old and form no part of the invention except in connection with the brake shoe or band 5.v If desired, an inner brake shoe 6 could be provided but vsaid structure forms no part of the invention. The brake shoe 5 is connected at 7 to a plate or arm 8 merging into a side late 9 which may be an integral ange of t e axle housing or may be a separate member rigidly secured to the axle housing. The brake shoe 5 at point 7 is provided with a hook end 10 which hooks over the plate 8 and from said hook end the band 5 extends entirely around 'the drum I2 and until the various convolutions AUTOMOBILE, BRAKE.

`.applicattimiguarNevenum 1.0,.v i921.. serial No. 514,223.`

d passes beneath the outer endof ilate 8 and then around the drum a secdn` time so that the end llthereof may be arrangedas shown in Figure 3.y

End 11I carries a ull rod 12 which is' conneoted, by threaded:j members or otherwise to a `crank 13 rigidly secured to the `shait `14. rThe shaft 14 is connected inany usual or preferred manner with the ordinary brake pedal ofthe automobile whereby when said' brake -pedal is pressed, shaft 14 willbe rotated and rod 12 4will be pulled of the shoe 5 are reduced in diameter and caused to tightly lhug or press against the drum 2. Thls will produce4 a gripping action that may be suiiiciently strong to. quickly lock the drum against rotation. A lining 15 is provided for the various convolutions of the brake shoe 5, said lining being of the usualconstruction of linings now in common use. y

VAt convenient points Iaround the brake shoe are arranged not onlyplate 8 but simireleased and at the same time a substan` tially longitudinal movement of the various parts of the shoepast the respective bolts 16 1s permitted.

What I claim is 1. The combination with the wheel of a vehicle, and a stationary member ad'acent said wheel, of a brake drum connecte with said wheel so as to rotate therewith, a single band surrounding said drum formed with a plurality of convolutions, means for securely connecting one end of said band to said stationary member, means for connecting the oppos1te end` of said band to a pull member, and means for holding the various convolutions of said band in aligned relation to each other to produce a proper gripping action when said pull member has been actuated.

2. A brake for automobiles comprising a sisi aving bevel drum, a plate adapted to be connected with the axle housing of an automobile, a pair of auxiliary arms extendinor from said plate over said drum but spaced brake shoe having one end secured to one of said arms arranged between said arms and the drumrsaid brake shoe being formed of a stripofmate'rial having a plurality of convolutins, means carried by said arms for normally holding said convolutions out of engagement with said drum, and means for causing said convolutions to grip said drum.

3. An automobile brake comprising a drum, a plurality of arms extending over said drum but spaced therefrom, said arms being stationary in respect to the drum, a brake shoe arranged between said arms and drum, said brake shoe having a plurality of coils, one end of said brake shoe being securedly connected with one of said arms, means extending through said arms for from the drum, a

. guldin holding said brake shoe in proper operative position, and a pull rod connected with one end of thefbrake shoe for causing the brake shoe to be constrioted'to grip said drum.

4. An automobile brake, comprising a drum adapted to be connected with the Wheel of an automobile, a spirally formed brakel shoe surrounding said drum and formed With a plurality of convolutions, means for connecting one end of said spirally formed brake shoe with the axle housing of the auto1nobile,-a manually actuated lnemberfconnected withv the opposite end of said brake shoe whereby when the manually actuated member is moved the various convolutions and said brake shoe Will be constricted for pinching said drum, and a plurality of fixed armsfor each convolution of said brake s oe.

MICHAEL CROWLEY. 

